Re: [PATCH] net: cgroup: fix out of bounds accesses

From: Gao feng
Date: Mon Jul 09 2012 - 04:15:12 EST


ä 2012å07æ09æ 15:45, Eric Dumazet åé:
> From: Eric Dumazet <edumazet@xxxxxxxxxx>
>
> dev->priomap is allocated by extend_netdev_table() called from
> update_netdev_tables().
> And this is only called if write_priomap() is called.
>
> But if write_priomap() is not called, it seems we can have out of bounds
> accesses in cgrp_destroy(), read_priomap() & skb_update_prio()
>
> With help from Gao Feng
>
> Signed-off-by: Eric Dumazet <edumazet@xxxxxxxxxx>
> Cc: Neil Horman <nhorman@xxxxxxxxxxxxx>
> Cc: Gao feng <gaofeng@xxxxxxxxxxxxxx>
> ---
> net/core/dev.c | 8 ++++++--
> net/core/netprio_cgroup.c | 4 ++--
> 2 files changed, 8 insertions(+), 4 deletions(-)

Acked-by: Gao feng <gaofeng@xxxxxxxxxxxxxx>
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